Ducati 450 Mark 3 (1969-75)

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The Ducati 450 Mark 3 is a motorcycle model that was produced from 1969 to 1975. It features a four stroke, single cylinder engine with a capacity of 435.7 cc and a compression ratio of 9.3:1. The engine is air-cooled and driven by a bevel gear. The ignition system consists of points and coil, which was later replaced with an electronic system in 1973. The bike has a maximum power of 18.4 kW/25 hp at 6500 rpm. The transmission is a 5-speed gearbox, with a wet, multiplate clutch. The brake system consists of drum brakes in both the front and rear, with the front brake having a diameter of 180 mm and the rear brake having a diameter of 160 mm. The suspension system features a 35 mm Marzocchi telescopic fork at the front and a swingarm with dual Marzocchi shocks that are three-way adjustable at the rear. The dimensions of the bike are 2000 mm in length, 600 mm in width, and 940 mm in height, with a wheelbase of 1360 mm and a seat height of 735 mm. The bike has a dry weight of 130 kg and a fuel capacity of 13 liters.

Technical specifications:

Make Model: Ducati 450 Mark 3

Year: 1969 – 75


Engine: Four stroke, single cylinder, SOHC, bevel gear driven
Capacity: 435.7 cc / 26.6 cu in
Bore x Stroke: 86 x 75 mm
Compression Ratio: 9.3:1
Cooling System: Air cooled
Induction: Dell’Orto VHB 29 AD
Spark plug: Marelli CW260N / Lodge 2HN
Ignition: Points and coil (electronic from 1973)
Starting: Kick
Battery: SAFA 3L3, 13.5 Ah
Max Power: 18.4 kW / 25 hp @ 6500 rpm
Clutch: Wet, multiplate
Transmission: 5 Speed
Primary Drive Ratio: 2.111:1 (27/57)
Gear Ratios: 1st 2.46 / 2nd 1.73 / 3rd 1.35 / 4th 1.10 / 5th 0.97:1

Final Drive Ratio: 2.666:1
Final Drive: Chain
Front Suspension: 35 mm Marzocchi telescopic fork
Rear Suspension: Swingarm, dual Marzocchi shocks, 3-way adjustable
Front Brakes: Drum, 180 mm
Rear Brakes: Drum, 160 mm
Front Tyre: 2.75-18
Rear Tyre: 3.00-18
Dimensions: Length: 2000 mm / 78.7 in Width: 600 mm / 23.6 in Height: 940 mm / 37.0 in
Wheelbase: 1360 mm / 53.5 in
Seat Height: 735 mm / 28.9 in
Dry Weight: 130 kg / 286 lbs
Fuel Capacity: 13 Litres / 3.4 US gal / 2.9 Imp gal

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